Projectile



H. H. SIBLEY.

Projeotile.'

No. 225,650. Patented Mar. 16,1880,

, dimensions to the diameter of the shot.

tbnTED @raras harrnr- HENRY H. lSIBLEY, OF FREDERICKSBURG, VIRGINIA.

PROJ ECTl LE.

SPECIFICATION forming part of Letters Patent No. 225,650, dated March16, 18180.

Application filed September 29, 18749.

To all whom it may concern:

Be it known that I, HENRY H SI-LEY, ot'

Fredericksburg, in the countyofSpottsylvania and State of Virginia, haveinvented certain new and useful Improvements in Projectiles; and I dohereby declare that the followingis a full, clear, and exact descriptionof the invention, which will enable others skilled in the art to whichit app'ertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

Figure l is a side elevation of myimproved projectile complete ready fortiring. Fig. 2 is a central longitudinal section 'ot' the same. Fig. 3is a transverse section on line :t .r of Fig. 2.

The saine letter in'dicates the same part' wherever it occurs .in theseveral figures.

My invention relates to an improvement iu projectiles designedprincipally for use in pro .jectiles for artillery 5 and it consists inthe combination, with the projectile, of cotton or other fabric thatwill hold a lubricant7 together with mechanism by which this fabric ispressed into and made to take the rifiings of the bore of the gun andfill the bore ofthe gun, hereinafter set forth and claimed.

In the drawings, A is the body of my iinproved projectile before firing.B is the hol low socket, open at both ends and made of two equal parts,plane on its exterior and concave on its interior, with a screw-tap atone end to fasten it to the solid shot into the screwtapped'recess atthe end ofthe shot.

D is the sabot, and 1)/ the bolt. lheiirstis made with a rim, It, thespace between the rim and the bolt being equal to the thickness ot'thesocket 1i.

The outer' border of the rim corresponds in v the outer border awedge-shaped notch, a, is

vent its coming out-any farther than the point named. This boltis madecap-shaped at its farther end and a very little longer than the socket,so that when it is driven up at the discharge and impinging against thesolid shot the metal of which the bolt is made, being malleable iron,will spread into a small space left at the end of the socket, and thusrivet the two together and hold the sabot in its new position during theflight of the projectile.

C is the lubricated wadding, which is made of cotton, hemp, or iiax, orof any suitable fibrous material which willhold a lubricant. Thiswadding isV prepared in cylinders open tat both ends, the interiorIcorresponding -in size to that of the socket, the exterior to thecircumference ofthe projectile, thc whole being equal in length to theVspace between the projection left 011- the shot after thcsocket isscrewed into it and the end of the rim of the sabot when it is adjustedwithin the sabot.

To adjust the shot for firing, introduce the bolt ot' .the sabot intothe two equal parts of the socket B, slip the wadding over the socket,and screw the whole intothe shot.

At'the discharge the sabot D will be driven forward, and the waddin g Gwill be compressed into tlie bore of the gun and int'o the grooves bythe action of the rim.

rlhe bolt-head, by impinging against the solid shot, will clinch andhold the sabot to the shot, the spare material of the wadding will bepressed into the wedge-shaped notch a on the sabot, and the projectilewill take a rotary motion in itsilight.

The windage being dest'oyed, the initial vclocityis increased, thetrajectory is iiattened, the range and penetration are increased,greater accuracy is attained, and, iinally, insteadet' the bore, and thegrooves ol' 'the gun being fouled and obstructed with lodgments, as isthe result of the use of most if not all other projectiles, the bore andgrooves are smoothed, polished, and lubricated at each discharge. l

Having thus described my projectile, what I claim isl. rllle combinationot' the solid shot A, the hollow socket B, the lubricated \\\adding C,the sabot l), and bolt 1)', all combined and ep- IOO rating subsnanuauyas described, whereby u held rmly in place, and after 'firing is rigidlyIo vthe-Waddingis forced into the grooves and into secured in its newposition. '4 the bore of the gun by longitudinal pressure. In testimonytha-t I claim the foregoing as l2. The soekebB, provided with a concavemy own invention Iafxiny signature in pres- 5`interior, substantially asdescribed, in eom= ence of two witnesses. v binetion with theshotA A andthe sabot D, l 1 HENRYl H. SIBLEY. `whose bolt isconvex and nearlyyconoentrio `Witnesses: l "with the 'concavity ofthefsocketsubstantially Y' H. M. D. MARTIN, las shown, whereby theIsabot before lring irs Jyo. rl. GooHIoK.

